package cn.zl.ymcc.controller;

import cn.zl.ymcc.OssProtied.OSSProperties;
import cn.zl.ymcc.exception.GlobalBusinessException;
import com.aliyun.oss.ClientBuilderConfiguration;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.common.auth.DefaultCredentialProvider;
import com.aliyun.oss.common.comm.SignVersion;
import com.aliyun.oss.model.PutObjectRequest;
import com.aliyun.oss.model.PutObjectResult;
import darabonba.core.exception.ClientException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;

import java.io.InputStream;
import java.util.UUID;

@Component
public class AliYunOss {
    @Autowired
    private OSSProperties ossProperties;
    public  String uploadFile(MultipartFile file) throws Exception {
        // Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。
        // 从环境变量中获取访问凭证。运行本代码示例之前，请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。
        DefaultCredentialProvider credentialsProvider =
                new DefaultCredentialProvider(ossProperties.getAccessKeyId(), ossProperties.getAccessKeySecret());
        // 填写Bucket名称，例如examplebucket。
        // 填写Object完整路径，完整路径中不能包含Bucket名称，例如exampledir/exampleobject.txt。
        if (file.isEmpty()){
            throw new GlobalBusinessException("请选择上传文件");
        }
        String string = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
        String objectName= UUID.randomUUID().toString()+string;

        // 填写本地文件的完整路径，例如D:\\localpath\\examplefile.txt。
        // 如果未指定本地路径，则默认从示例程序所属项目对应本地路径中上传文件。
        InputStream inputStream = file.getInputStream();
        // 填写Bucket所在地域。以华东1（杭州）为例，Region填写为cn-hangzhou。

        // 创建OSSClient实例。
        // 当OSSClient实例不再使用时，调用shutdown方法以释放资源。
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);
        OSS ossClient = OSSClientBuilder.create()
                .endpoint(ossProperties.getEndpoint())
                .credentialsProvider(credentialsProvider)
                .clientConfiguration(clientBuilderConfiguration)
                .region(ossProperties.getRegion())
                .build();

        try {
            // 创建PutObjectRequest对象。
            PutObjectRequest putObjectRequest = new PutObjectRequest(ossProperties.getBucketName(), objectName, inputStream);
            // 上传文件。
            PutObjectResult result = ossClient.putObject(putObjectRequest);
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
        //https://zl-ymcc1.oss-cn-hangzhou.aliyuncs.com/a.jpg
        String[] split = ossProperties.getEndpoint().split("//");
        return "https://"+ossProperties.getBucketName()+"."+split[1]+"/"+objectName;
    }
}
